Condusiv Technologies Blog

Condusiv Technologies Blog

Blogging @Condusiv

The Condusiv blog shares insight into the issues surrounding system and application performance—and how I/O optimization software is breaking new ground in solving those issues.

IntelliWrite boosts Lotus Domino Performance - Success Story

by Colleen Toumayan 16. April 2010 05:38

Sure I'd love to give a recommendation for Diskeeper.  We are running 2010 now with Diskeeper Administrator and so far I love the improvements. Many of our Lotus Domino servers were so busy that realtime defrag had trouble keeping up, but with the new IntelliWrite technology preventing most of the fragmentation in the first place, we finally have it under control.

 

The systems were running well prior to introducing Diskeeper, but we deployed the software during a project where we virtualized over 80% of our production servers.  Because of the shared storage aspect of our virtual platform I knew that fragmentation would become a serious issue if we didn't deal with it from day one.  The  Lotus Domino servers often had trouble keeping up with the fragmentation rate but most other servers did well with Diskeeper Server 2008.   

The new Diskeeper 2010 has our fragmentation in check across the boards and I couldn't be happier with it.

 

 

Josh Currier, Network Manager - Munters Americas

Amesbury, MA

http://www.muntersglobal.com

 

Munters is the  global leader in energy-efficient air treatment solutions and restoration services based on expertise within humidity and climate-control techniques.  Munters is organized in three divisions; Dehumidification, MCS (Moisture Control Serviced) and HumiCool. Customers are served in a wide range of segments, the most important being the insurance, utilities, food, pharma and electronics industries. Manufacturing and sales are carried out via the Group’s own companies in 30 countries. The Group has approx. 4000 employees and net sales of SEK 6,650 million.

Tags:

Defrag | Diskeeper | IntelliWrite | Success Stories | virtualization

Optimizing Cameras, GPS, Smart Phones and other SD Card devices

by Michael 9. January 2010 09:36

Rumack: Fragmentation slows down SD Card performance!

 

Striker: Surely you can't be serious.


 

Rumack: I am serious... and don't call me Shirley.    

 

The word is slowly [but surely :-)] getting out that fragmentation affects NAND Flash storage - specifically free space fragmentation. The SD Association website is a great resource for edification and development resources. On their page describing the SD Card Speed Classes, they even discuss fragmentation.

 

 

Fragmentation and Speed

The memory of a card is divided into minimum memory units. The host writes data onto memory units where no data is already stored. As available memory becomes divided into smaller units through normal use, this leads to an increase in non-linear, or fragmented storage. The amount of fragmentation can reduce write speeds so higher SD card speeds help compensate for fragmentation.

 

There are several methods to address this issue. One is, as mentioned, buy better performing storage and hope your requirements never exceed the cards ability to deliver on your needs (though fragmentation will still limit the storage's peak performance). However, a better approach is to fix the root issue, and there are two ways to do that.

1. Defragment the free space (e.g. HyperFast, Diskeeper)

2. Copy all the data off the SD Card and reformat the card

The best approach is likely to be determined by the device in which the SD Card is used. If it's from your digital camera, option 2 is probably pretty easy to undertake. If pulling all the data off the card is not feasible, optimize it.

The only other question then might be "how often do I run optimization?". I did a blog post on that, including some performance tests, a few years ago, Read that Here or Here.

Lastly, I thought I'd include a recent personal success from an IT professional who happens to also use Diskeeper at work:

"Happy new year!! I made an interesting test over the holidays using Diskeeper 2010. I was updating my GPS with new maps and discovered that my Garmin unit uses Fat32 file system so I figured I would run your software on it just for fun and see the results. I was able to defragment a large part of the files and it more than doubled the speed of the unit. The images render faster with less stutter, routes are recalculated almost instantly now and it finds points of interest much faster. I did the same test on 2 other GPS`s and got the same results." Regards, Carlo

Tags:

Defrag | SD Card | SSD, Solid State, Flash

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